1845 in science
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Other events of 1845
List of years in science
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1844 in science
1845 in science
1846 in science
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The year 1845 in science and technology included many events, some of which are listed here.
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Astronomy
- April – Lord Rosse discovers that the nebula M51 has a spiral structure
Physics
- September 13 – Michael Faraday discovers that an intense magnetic field can rotate the plane of polarized light
Awards
- Copley Medal: Theodor Schwann
- Wollaston Medal for Geology: John Phillips
Births
- March 3 - Georg Cantor (d. 1918), mathematician.
- March 27 - Wilhelm Röntgen (d. 1923), physicist, discoverer of X-rays, Nobel laureate.
- September 11 - Emile Baudot (d. 1903), telegraph engineer.
Deaths
- March 13 - John Frederic Daniell, chemist and physicist (born 1790)
- October 18 - Dominique, comte de Cassini, French astronomer (born 1748)
